Cook's Valley Campground, CA

This listing's on-file address places it in San Francisco, but the listed website, northernnights.org, and independent event and camping listings identify the real property as Cook's Valley Campground in Piercy, California, a riverside campground in redwood country near the Mendocino-Humboldt county line, roughly 200 miles north of San Francisco. The grounds are best known as the home of the Northern Nights Music Festival, held there most Julys along the Eel River under old-growth redwoods, and offer tent, car and RV camping plus glamping options; outside festival weekends the property functions as a standard riverside campground rather than anything tied to the Bay Area.